SKU: 74935584247

Mean Well - 50W Single Ouput DC - DC Converter - 12VDC

Sale price$537.79 Regular price$597.54
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Description

Mean Well - 50W Single Ouput DC - DC Converter - 12VDCRobust & Reliable Power Conversion for Demanding Applications Experience stable and efficient power conversion with the Mean Well SD 50B 12, a high performance 50W enclosed DC DC converter. Designed for industrial grade applications, this unit reliably steps down a wide 19 36V DC input to a steady 12V DC output, making it perfect for battery backup systems, transportation vehicles, and industrial automation. Its robust metal chassis and built in EMI

Robust & Reliable Power Conversion for Demanding Applications

Experience stable and efficient power conversion with the Mean Well SD-50B-12, a high-performance 50W enclosed DC-DC converter. Designed for industrial-grade applications, this unit reliably steps down a wide 19-36V DC input to a steady 12V DC output, making it perfect for battery backup systems, transportation vehicles, and industrial automation. Its robust metal chassis and built-in EMI filter ensure low noise and dependable operation in challenging environments.

Core Features & Benefits

  • Wide 2:1 Input Range: Accepts an input voltage from 19V to 36V DC, providing flexibility for various power sources.
  • Stable 12V Output: Delivers a regulated 12V DC output with a 4.2A current capacity, ideal for sensitive electronics.
  • Comprehensive Protection: Features integrated protection against short circuits, overload (105-150%), and over-voltage, safeguarding your connected devices.
  • High-Integrity Isolation: 1500VAC I/O isolation enhances safety by preventing ground loops and reducing electrical noise.
  • Built for Reliability: With a fixed switching frequency at 83kHz and a 100% full load burn-in test, this converter is built for long-term, maintenance-free operation.
  • Certified & Compliant: Meets rigorous standards for safety and electromagnetic compatibility, ensuring seamless integration.

Technical Specifications

Output Specifications
DC Voltage 12V
Rated Current 4.2A
Rated Power 50.4W
Ripple & Noise (max.) 100mVp-p
Voltage Adj. Range 11.4 ~ 13.2V
Input Specifications
Voltage Range 19 ~ 36VDC
Efficiency (Typ.) 75%
Protection
Overload 105 ~ 150% rated output power. Hiccup mode, auto-recovers.
Over Voltage 13.8 ~ 16.2V. Shut down o/p voltage, re-power on to recover.
Short Circuit Hiccup mode, recovers automatically after fault condition is removed.
Environment & Physical
Operating Temperature -10 ~ +60°C (Refer to derating curve)
Dimensions (L x W x H) 159 x 97 x 38 mm
Weight 0.43 kg
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 74935584247

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4.1 ★★★★★
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Kurtiss s.
Boise, US
★★★★★ 5
Works as it should.
Size: 300A Fuse Holder
I’ve had several of these in my build for over a year now. Zero issues.
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Reviewed in the United States on December 3, 2025
C
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Clint
Battle Creek, US
★★★★★ 5
Good brand
Size: 300A Fuse Holder
Good product
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Reviewed in the United States on November 5, 2025
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Quinton
Port Orchard, US
★★★★★ 5
good product
Better then expected
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Reviewed in the United States on April 12, 2026
P
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Patrick
San Leandro, US
★★★★★ 5
Good bang for your buck, great quality.
Works great. Most of it is metal and works as a heat sink. Came with two fuses and the adapters for smaller or larger Guage wires. Fit very well and easily for our choice of installation and was a great price.
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Reviewed in the United States on May 8, 2025
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Verified Purchase
Jeremy Gardner
Pawtucket, US
★★★★★ 5
Good for under the hood
Pretty good heavy duty block. It's got the rubber grommets for the smaller wire if needed.
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Reviewed in the United States on January 1, 2026

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